Juan de la Serna y Alarcon & Francisca Rita Javiera de la Rue (French?) Children Maria Ricarda, bapt 06 April 1775, San Carlos Catholic Church, Vallecillo, N.L. Maria Dolores Venancia, bapt 21 May 1780 San Carlos Catholic Church Maria Lorenza married 11 Nov 1776 San Carlos Catholic Chuech, Juan Nepomuceno Ruiz-Herrera Juan Ruiz is the son of Jose Bartolome Ruiz & Maria Nicolas Herrera The Ruiz family owned Rancho de los Colorados de Abajo, Nuevo Leon.
I would look for them in Vallecillo. (ps I looked in the Vallecillo book didn't find them)
In the Cerralvo book of marriages they had her listed as Francisca Javiera de la Rosa. My lineage is through Maria Lorenza's second marriage in Cerralvo to Jose de Jesus Vela Adame (whose parents I'm also researching)Buenaventura Vela and Maria Rita Adame. I think the Vela's came from El Almao Ranch 40 miles from Mier. The Sernas's as with the de la Rue's, Adame's no info. Any help would be appreciated Thank you SW